AirMan PDS400S-6C3, Service Manual

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4. Troubleshooting
4-18
4.6.2 How to delete diagnostic trouble code (DTC)
1. Deletion of diagnostic trouble code (DTC)
When diagnostic trouble code (DTC) is memorized in engine control module (ECM) in case of
system trouble. Even after troubled parts have been repaired, memory of diagnostic trouble code
(DTC) will not be deleted in this case. It is necessary to compulsorily delete this memory, according
to the following procedures.
2. Memory clear
①
Switch ON starter switch.
②
Switch ON diagnosis switch of the monitor panel.
Diagnosis switch to maintain is ON by momentary type, press and hold.
③
Switch ON memory clear switch (connection of ECM CN3-32 terminal and ground connection).
To ground : 0.75G terminal (female terminal) of engine controller (ECM) of the operation panel
inside.
PC12061E
Female terminal Engine controller (ECM)
PC14070
④
Wait for more than 3 seconds in the ON.
⑤
Switch OFF memory clear switch (connection of ECM CN3-32 terminal and ground connection).
⑥
Switch OFF diagnosis switch.
⑦
Switch OFF starter switch.
⑧
Wait for 10 seconds with the switches OFF.
⑨
Switch ON starter switch.
⑩
Switch ON diagnosis switch.
⑪
Check and confirm that memories are deleted.
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